What do I really feel?

Have you ever experience the feeling of not knowing what you are really feeling as of the moment? Well, I'm in that state right now. I'm actually in the brink of discovering what I'm really up to emotionally. At one point, I can say that I'm happy with my life now. I have a very loving husband and normal married life so far. When it comes to work, I'm having a great time learning new things and perfecting the old skills. But why am I feeling this way? I'm thinking there might be something missing. What could that be? Hoping to find some answers....